Elevator.



M. F. BEHREND.

ELEVATOR.

APPLIOATION FILED n 31, 1913.

Patented Feb. 24, 1914.

3 SHEETS-SHEET 1.

M. F. BEHREND.

ELEVATOR.

APPLIGATION FILBD MAY 31, 1913.

Patented Feb. 24, 1914 3 SHEEN-SHEET 2.

M. F. BEHREND.

ELEVATOR.

APPLIGATION FILED MAY 31, 1913" Patented Feb. 24, 191i 3 SHEETS-SHEET B.

COLUMBIA PLANOGRAPH co., WASHINGTON, n. c,

MARTIN F. BEHREND, OF PLYMOUTH, WISCONSIN.

ELEVATOR.

To all 107mm it may concern:

Be it known that I, MARTIN F. BEI-IREND, a citizen of the United States, and resident of Plymouth, in the county of Sheboygan and State of Wisconsin, have invented certain new and useful Improvements in Elevators; and I do hereby declare that the following is a full, clear, and exact description thereof,

My invention has for its object to provide a simple, economical, eifective and portable elevator, the same being particularly designed for filling silos or the like.

The construction and arrangement of the elevator is such that when the same is set up for use it is vertically disposed whereby sagging strain is elimmated, an important feature being the provision whereby sections of the elevator leg or trough can be added or subtracted to regulate the height of discharge, the said leg being capped by a horizontally detachable delivery boot, which boot carries series of guide-sheaves in the form of sprocket-wheels that co-act in conjunction with a set of sprocket-wheels carried by a receiving hopper, whereby a bucket-carrying chain-belt is directed and supported.

With the above objects in view the 1nvention consists in certain peculiarities of construction and combination of parts as hereinafter set forth with reference to the accompanying drawings and subsequently claimed.

In the drawings Figure 1 represents a side elevation of an elevator embodying the features of my invention; Fig. 2, a sectional elevation of the same, the section being indicated by line 22 of Figs. 3, and 4; Fig. 3, a sectional front elevation of the elevator mechanism, the section being indicated by line 38 of Fig. 1; Fig. 4C, a detailed plan view of the boot portion of the elevator;

'Figs. 5 and 6, detailed cross-sections of the leg portion or trough the sections being indicated by lines 55 and 66 of Fig. 3; Fig. 7, a plan view of the receiving hopper and its trough sections, the same being partly in section as indicated by line 7-7 of Fig. 1; Fig. 8, a detailed cross-section o a belt-tightening mechanism constituting part of the boot portion of the elevator, the section being indicated by line 88 of Fig. 1, and Fig. 9, a plan sectional view of the belt-tightening mechanism, the section being indicated by line 99 of Fig. 8.

Specification of Letters Patent.

Application filed May 31, 1913.

Patented Feb. 24, time. Serial No. 771,100.

Referring by characters to the drawings, 1 represents a hopper into which is journaled a shaft 2 carrying sheaves 3 in the form of sprocket-wheels. Bolted to the side-walls of the hopper are strut strips l, whlch strut strips are also secured to side boards 5 that abut the edges of the wall. These side boards are connected by front and rear metallic walls 6 and 7 respectively, the same in conjunction with the side boards forming a rectangular main trough section A or leg through which the working stretch of a conveyer, to be hereinafter described, is adapted to travel. The rear wall overlaps the rear wall of the hopper, forming a continuation thereof, while the front wall 6 terminates at a predetermined distance from the hopper bottom, to form a throat through which the material passes from the hopper to the incased leg of the conveyor.

The main trough section A just described has fitted to its top end a second upper trough section B, which upper trough section is composed of side boards 5' and front and rear metallic walls 6, 7, respectively, the same being secured to the side boards in any suitable manner. The lower ends of these side boards are arranged to abut and register with the side boards 5 and the front and rear metallic walls 6, 7, are in telescopic union with the corresponding walls 6 and 7 of the main trough section A, where by the two trough sections may be lengthened or shortened with relation to each other, in order to regulate the height of the entire leg. After the desired adjustment between the trough sections has been accom plished, the said trough sections are rigidly clamped together by corresponding pairs of transversely disposed strips 8, 8, S, 8, which strips engage the outer faces of the metallic walls 6", 7. Each pair of these strips also overlap side struts 4- that are secured to the lower ends of the side boards 5' of the upper trough section B. The said side struts 4 also overlap the side boards 5 and thus form continuations between the side boards 5 and 5 as shown. Hence by connecting the pairs of clamping strips 8, 8, with bolts 9, as shown, the jointed mem bers are rigidly locked and in order to pre vent sliding downward of the upper section, after the frictional clamping mechanism has been locked, the lower ends of the side struts 4 are arranged to abut bl cks 10. These blocks are adjusted to the desired elevation and locked in their adjusted position by bolts 10 which have vertical play in slots 11 that are formed in the side boards 5.

It is understood that as many trough sections as may be desired can be added to the conveyer so as to obtain the desired elevation. Fitted to the upper end of the main trough section B is a horizontally disposed delivery trough G, which delivery trough is detachably secured to the trough section by depending struts 12 that overlap the side boards 5. These struts are cross-connected by pairs of transverse clamping strips 13, the same being secured by bolts 14 which pass through the struts. Hence after the struts, together with their clamping strips, are fitted over the end of the trough, the bolts are tightened up so as to rigidly secure the boot in its working position. The delivery trough is built up from horizontally disposed side boards 15, 15, which are secured to the struts 12, as best shown in Fig. 1, the lower boards 15 being connected by a metallic bottom-plate 16, which plate is bent at the intersecting point of the struts to form a right-angle extension 16, that overlaps the rear wall 7 of the hopper section B, the said overlapping portion of the bottom being interposed between the wall 7 and one of the clamping strips 14 which connect the struts. The side boards 15, at their heel end, are connected by a vertically disposed cross-strip 17, to which strip and an oblique portion of the side boards 15 there is secured a transversely disposed metallic closure 17, which closure has a depending lip that overlaps the juxtaposed end of the front wall 6' of said trough section B. The side boards 15 of the delivery trough are further strengthened and connected by a transversely disposed stay-block 18, whereby rigidity is added to the said delivery trough. Brackets 19 are secured to the toe of the delivery trough, the same being provided with boxes for the reception of a shaft 20, which shaft carries sheaves 21 that are also in the form of sprocket-wheels. At the intersecting point of the struts 12 and side boards 15 the said struts carry bearing-brackets 22 for the reception of a transversely disposed shaft 23, which shaft carries sheaves 23 in the form of sprocketwheels, the same being adapted to rotate within the delivery trough, the bottom wall 16 thereof being cut away for this purpose.

The heel of the delivery trough G has secured thereto a pair of horizontally disposed plates 24, into which is slidably fitted a pair of bearing-brackets 25, the same being vertically adjusted by threaded spindles 26, which spindles are revolubly mounted in cars that extend from the plates, their threaded ends being in engagemnt with ears that extend from the bearing-brackets. After the desired adjustment of the bearing-brackets has been effected they are locked by binding-bolts 27 that are carried by the brackets and adapted to travel in slots with which the plates are provided. The bearing-brackets 25 carry a transversely disposed shaft 28 upon which is mounted a pair of sheaves 28 also in the form of sprocket-wheels. A pair of endless chains 29, 29, are mounted upon the several sets of sprocket-wheels as shown, the said chains being adapted to travel in the direction of the arrow as shown in Fig. 2, under the hopper sprockets 3 and up through the trough or leg about the sprockets 23 and from thence to the toe-sprockets 21 of the delivery trough, the idle stretch of the chains being returned over the sprocket-wheels 28 and back to the feed-hopper sprocketwheels. It is apparent that when the length of the elevator leg is varied that these companion sets of chains may be lengthened or shortened in accordance with such variation and the entire belt is adjusted as to tension by vertical shift of the bearing-brackets 25 which carry the sheaves 28. The chains are connected by transversely disposed buckets 30, which buckets are secured to wings that extend from selected links of the opposite chain-belts.

From the foregoing description it is apparent that when it is desired to fill a silo or analogous store-house that the elevator is adjusted parallel to its wall and at such height that the delivery trough can be inserted within the filling door. The ma terial is thereafter discharged from any suitable source into the hopper 1 and power being applied to the hopper-shaft- 2, the chain with its buckets, constituting a conveyer, will travel downward through the hopper and cause its contents to be elevated through the trough or leg and as the position of the bottom of the buckets is reversed in the travel of the conveyer about the sheaves 2 the contents of said buckets is dumped upon the delivery trough bottom 16. Further travel of the buckets in a position parallel to the bottom 16 will cause the delivered material to be scraped from said bottom and discharged into the silo from the mouth of the delivery trough bottom as in dicated by the dot-ted arrow in Fig. 1, the idle stretch of the chains being thereafter returned as previously described. It is also apparent that the length of the delivery trough will determine the point of discharge with relation to the walls of the silo and that this point may be controlled by moving the entire conveyer toward or away from the silo wall.

I claim:

An elevator comprising a main trough section the same being rectangular in cross section, a similar rectangular upper trough section having front and rear walls in telescopic union with the corresponding walls of the main trough section, struts depending from the upper trough section engaging the side Walls of the main trough section, transversely disposed clamping strips engageable with the telescoped walls of said trough sections, bolts for securing the transverse strips together, adjustable blocks carried by the main trough section for engagement with the ends of the upper trough section struts, delivery means in connection With the top end of the upper trough section, and receiving means in connection with the lower end of the main trough section.

In testimony that I claim the foregoing 15 I have hereunto set my hand at Plymouth in the county of Sheboygan and State of l/Visoonsin in the presence of two witnesses.

MARTIN F. BEHREND.

Witnesses:

H. W. I-Ios'mmN, WV. L. KAEsTNnR.

topics of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. G. 

